JPS5246508A - Noise absorption duct - Google Patents
Noise absorption ductInfo
- Publication number
- JPS5246508A JPS5246508A JP50122542A JP12254275A JPS5246508A JP S5246508 A JPS5246508 A JP S5246508A JP 50122542 A JP50122542 A JP 50122542A JP 12254275 A JP12254275 A JP 12254275A JP S5246508 A JPS5246508 A JP S5246508A
- Authority
- JP
- Japan
- Prior art keywords
- duct
- noise absorption
- absorption duct
- noise
- boards
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To absorb duct noise by partitioning the duct with partition boards and by adopting perforated boards for at least one side of the duct to attenuate the sound energy of particular frequencies by virtue of resonance at the perforation.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50122542A JPS5246508A (en) | 1975-10-13 | 1975-10-13 | Noise absorption duct |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50122542A JPS5246508A (en) | 1975-10-13 | 1975-10-13 | Noise absorption duct |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5246508A true JPS5246508A (en) | 1977-04-13 |
Family
ID=14838440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50122542A Pending JPS5246508A (en) | 1975-10-13 | 1975-10-13 | Noise absorption duct |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5246508A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6688424B1 (en) * | 1997-10-24 | 2004-02-10 | Komatsu Ltd. | Noise absorbing device and device for taking air into engine room of a construction machine |
US9714630B2 (en) * | 2015-10-07 | 2017-07-25 | General Electric Company | Noise baffle for a rotary machine and method of making same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4512292Y1 (en) * | 1966-03-16 | 1970-05-29 | ||
JPS4916564U (en) * | 1972-05-20 | 1974-02-12 |
-
1975
- 1975-10-13 JP JP50122542A patent/JPS5246508A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4512292Y1 (en) * | 1966-03-16 | 1970-05-29 | ||
JPS4916564U (en) * | 1972-05-20 | 1974-02-12 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6688424B1 (en) * | 1997-10-24 | 2004-02-10 | Komatsu Ltd. | Noise absorbing device and device for taking air into engine room of a construction machine |
US9714630B2 (en) * | 2015-10-07 | 2017-07-25 | General Electric Company | Noise baffle for a rotary machine and method of making same |
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